package com.atguigu.gulimall.product.service.impl;

import com.atguigu.common.constant.ProductConstant;
import com.atguigu.gulimall.product.dao.AttrAttrgroupRelationDao;
import com.atguigu.gulimall.product.dao.AttrGroupDao;
import com.atguigu.gulimall.product.dao.CategoryDao;
import com.atguigu.gulimall.product.entity.AttrAttrgroupRelationEntity;
import com.atguigu.gulimall.product.entity.AttrGroupEntity;
import com.atguigu.gulimall.product.entity.CategoryEntity;
import com.atguigu.gulimall.product.service.AttrAttrgroupRelationService;
import com.atguigu.gulimall.product.service.CategoryService;
import com.atguigu.gulimall.product.vo.AttrGroupRelationVo;
import com.atguigu.gulimall.product.vo.AttrRespVo;
import com.atguigu.gulimall.product.vo.AttrVo;
import com.baomidou.mybatisplus.core.toolkit.CollectionUtils;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.product.dao.AttrDao;
import com.atguigu.gulimall.product.entity.AttrEntity;
import com.atguigu.gulimall.product.service.AttrService;
import org.w3c.dom.Attr;

import javax.annotation.Resource;


@Service("attrService")
public class AttrServiceImpl extends ServiceImpl<AttrDao, AttrEntity> implements AttrService {

    @Autowired
    AttrAttrgroupRelationDao relationDao;

    @Autowired
    AttrGroupDao attrGroupDao;

    @Autowired
    CategoryDao categoryDao;

    @Autowired
    CategoryService categoryService;

    @Resource
    private AttrAttrgroupRelationDao attrAttrgroupRelationDao;


    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrEntity> page = this.page(
                new Query<AttrEntity>().getPage(params),
                new QueryWrapper<AttrEntity>()
        );

        return new PageUtils(page);
    }

    /**
     * 获取当前分组没有关联的所有属性
     * @param params
     * @param attrgroupId
     * @return
     */
    @Override
    public PageUtils getNoRelationAttr(Map<String, Object> params, Long attrgroupId) {
        //1、当前分组只能关联自己所属的分类里面的所有属性
        AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrgroupId);
        Long catelogId = attrGroupEntity.getCatelogId();
        //2、当前分组只能关联别的分组没有引用的属性
        //2.1)、当前分类下的其他分组
        List<AttrGroupEntity> group = attrGroupDao.selectList(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));
        List<Long> collect = group.stream().map(item -> {
            return item.getAttrGroupId();
        }).collect(Collectors.toList());

        //2.2)、这些分组关联的属性
        List<AttrAttrgroupRelationEntity> groupId = relationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().in("attr_group_id", collect));
        List<Long> attrIds = groupId.stream().map(item -> {
            return item.getAttrId();
        }).collect(Collectors.toList());

        //2.3)、从当前分类的所有属性中移除这些属性；
        QueryWrapper<AttrEntity> wrapper = new QueryWrapper<AttrEntity>().eq("catelog_id", catelogId).eq("attr_type",ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode());
        if(attrIds!=null && attrIds.size()>0){
            wrapper.notIn("attr_id", attrIds);
        }
        String key = (String) params.get("key");
        if(!StringUtils.isEmpty(key)){
            wrapper.and((w)->{
                w.eq("attr_id",key).or().like("attr_name",key);
            });
        }
        IPage<AttrEntity> page = this.page(new Query<AttrEntity>().getPage(params), wrapper);

        PageUtils pageUtils = new PageUtils(page);

        return pageUtils;
    }
//    /**
//     * 获取当前分组未关联的属性****
//     * @param params
//     * @param attrgroupId
//     * @return
//     */
//    @Override
//    public PageUtils getNoRelationAttr(Map<String, Object> params, Long attrgroupId) {
//        //1、当前分组只能关联自己所属的分类里面的所有属性
//        AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrgroupId);
//        Long catelogId = attrGroupEntity.getCatelogId();
//        //2、当前分组只能关联别的分组没有引用的属性
//        //2.1)、当前分类下的其他分组
//        List<AttrGroupEntity> attrGroupEntities = attrGroupDao
//                .selectList(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));
//        List<Long> attgroupIds = attrGroupEntities.stream()
//                .map(item -> item.getAttrGroupId()).collect(Collectors.toList());
//
//        //2.2)、这些分组关联的属性
//        List<AttrAttrgroupRelationEntity> relationEntities = relationDao.
//                selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().in("attr_group_id", attgroupIds));
//        List<Long> attrIds = relationEntities.stream().map(item -> item.getAttrId()).collect(Collectors.toList());
//        //2.3)、从当前分类的所有属性中移除这些属性；
//        QueryWrapper<AttrEntity> attrEntityQueryWrapper = new QueryWrapper<>();
//        attrEntityQueryWrapper.eq("catelog_id", catelogId)
//                .eq("attr_type", ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode());
//        if(CollectionUtils.isNotEmpty(attrIds)){
//            attrEntityQueryWrapper.notIn("attr_id", attrIds);
//        }
//        // 3. 封装分页条件，添加查询字段
//        String key = (String) params.get("key");
//        if(!StringUtils.isEmpty(key)){
//            attrEntityQueryWrapper.and((w)->{
//                w.eq("attr_id",key).or().like("attr_name",key);
//            });
//        }
//        IPage<AttrEntity> page = this.page(
//                new Query<AttrEntity>().getPage(params),
//                attrEntityQueryWrapper
//        );
//        PageUtils pageUtils = new PageUtils(page);
//
//        return pageUtils;
//    }

    /**
     * 删除属性和分组的关联****
     * @param attrGroupRelationVos
     */
    @Override
    public void deleteRelation(AttrGroupRelationVo[] attrGroupRelationVos) {
        List<AttrGroupRelationVo> attrGroupRelationVoList = Arrays.asList(attrGroupRelationVos);
        List<AttrAttrgroupRelationEntity> attrgroupRelationEntityList = attrGroupRelationVoList.stream()
                .map(item -> {
                    AttrAttrgroupRelationEntity attrAttrgroupRelation = new AttrAttrgroupRelationEntity();
                    BeanUtils.copyProperties(item, attrAttrgroupRelation);
                    return attrAttrgroupRelation;
                }).collect(Collectors.toList());
        relationDao.deleteBatchRelation(attrgroupRelationEntityList);
    }


    /**
     * 获取分组的关联属性****
     * @param attrgroupId
     * @return
     */
    @Override
    public List<AttrEntity> getRelationAttr(Long attrgroupId) {
        QueryWrapper<AttrAttrgroupRelationEntity> queryWrapper = new QueryWrapper<>();
        queryWrapper.eq("attr_group_id", attrgroupId);
        List<AttrAttrgroupRelationEntity> relationEntityList = relationDao.selectList(queryWrapper);
        List<Long> attrIdList = relationEntityList.stream().map(item -> {
            return item.getAttrId();
        }).collect(Collectors.toList());
        if(CollectionUtils.isEmpty(attrIdList)){
            return null;
        }
        Collection<AttrEntity> attrEntities = this.listByIds(attrIdList);
        return (List<AttrEntity>) attrEntities;
    }

    /**
     * 获取单个属性信息****
     * @param attrId
     * @return
     */
    @Override
    public AttrRespVo getAttrInfo(Long attrId) {
        AttrRespVo respVo = new AttrRespVo();
        AttrEntity attrEntity = this.getById(attrId);
        BeanUtils.copyProperties(attrEntity,respVo);

        if(attrEntity.getAttrType() == ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()){
            //1、设置分组信息
            AttrAttrgroupRelationEntity attrgroupRelation = relationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrId));
            if(attrgroupRelation!=null){
                respVo.setAttrGroupId(attrgroupRelation.getAttrGroupId());
                AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrgroupRelation.getAttrGroupId());
                if(attrGroupEntity!=null){
                    respVo.setGroupName(attrGroupEntity.getAttrGroupName());
                }
            }
        }


        //2、设置分类信息
        Long catelogId = attrEntity.getCatelogId();
        Long[] catelogPath = categoryService.findCatelogPath(catelogId);
        respVo.setCatelogPath(catelogPath);

        CategoryEntity categoryEntity = categoryDao.selectById(catelogId);
        if(categoryEntity!=null){
            respVo.setCatelogName(categoryEntity.getName());
        }
        return respVo;
    }

    /**
     * 更新属性信息****
     * @param attrVo
     */
    @Override
    public void updateAttr(AttrVo attrVo) {
        AttrEntity attrEntity = new AttrEntity();
        BeanUtils.copyProperties(attrVo, attrEntity);
        this.updateById(attrEntity);
        // 如果是基本属性，则需要关联关系表
        if(attrEntity.getAttrType().equals(ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()) && attrVo.getAttrGroupId()!=null){
            QueryWrapper<AttrAttrgroupRelationEntity> queryWrapper = new QueryWrapper<>();
            queryWrapper.eq("attr_id", attrEntity.getAttrId());
            Integer count = relationDao.selectCount(queryWrapper);
            if(count>0){
                AttrAttrgroupRelationEntity attrAttrgroupRelation = new AttrAttrgroupRelationEntity();
                attrAttrgroupRelation.setAttrId(attrVo.getAttrId());
                attrAttrgroupRelation.setAttrGroupId(attrVo.getAttrGroupId());
                relationDao.update(attrAttrgroupRelation, queryWrapper);
            }
        }
    }

    /**
     * 获取基本属性分页（包括分组名+类别名）****
     * @param params
     * @param catelogId
     * @param type
     * @return
     */
    @Override
    public PageUtils queryBaseAttrPage(Map<String, Object> params, Long catelogId, String type) {
        // 1. 查询条件封装
        QueryWrapper<AttrEntity> queryWrapper = new QueryWrapper<>();
        queryWrapper.eq("attr_type"
                ,"base".equalsIgnoreCase(type)?ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()
                        :ProductConstant.AttrEnum.ATTR_TYPE_SALE.getCode());
        String key = (String) params.get("key");
        queryWrapper.eq("catelog_id", catelogId);
        if(StringUtils.isNotBlank(key)){
            queryWrapper.and(wrapper -> wrapper.eq("attr_name", key).or().like("attr_id", key));
        }
        // 2. 执行查询
        IPage<AttrEntity> attrEntityIPage = this.page(
                new Query<AttrEntity>().getPage(params),
                queryWrapper
        );
//        3. 设置分组名，类别名
        PageUtils pageUtils = new PageUtils(attrEntityIPage);
        List<AttrEntity> records = attrEntityIPage.getRecords();
        List<AttrRespVo> attrRespVoList = records.stream()
                .map(attrEntity -> {
                    AttrRespVo attrRespVo = new AttrRespVo();
                    BeanUtils.copyProperties(attrEntity, attrRespVo);

                    Integer attrType = attrEntity.getAttrType();
                    if ("base".equalsIgnoreCase(type)) {
                        QueryWrapper<AttrAttrgroupRelationEntity> relationEntityQueryWrapper = new QueryWrapper<>();
                        relationEntityQueryWrapper.eq("attr_id", attrEntity.getAttrId());
                        AttrAttrgroupRelationEntity attrAttrgroupRelation = relationDao.selectOne(relationEntityQueryWrapper);
                        // 设置分组名
                        if (attrAttrgroupRelation != null && attrAttrgroupRelation.getAttrGroupId() != null) {
                            AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrAttrgroupRelation.getAttrGroupId());
                            attrRespVo.setGroupName(attrGroupEntity.getAttrGroupName());
                        }
                    }
                    // 设置类别名
                    CategoryEntity categoryEntity = categoryDao.selectById(attrEntity.getCatelogId());
                    attrRespVo.setCatelogName(categoryEntity.getName());
                    return attrRespVo;
                }).collect(Collectors.toList());
        pageUtils.setList(attrRespVoList);
        return pageUtils;
    }

    /**
     * 保存属性*****
     * @param attr
     */
    @Override
    public void saveAttr(AttrVo attr) {
        AttrEntity attrEntity = new AttrEntity();
        BeanUtils.copyProperties(attr, attrEntity);
        this.save(attrEntity);
        if(attrEntity.getAttrType().equals(ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode())){
            AttrAttrgroupRelationEntity attrAttrgroupRelation = new AttrAttrgroupRelationEntity ();
            attrAttrgroupRelation.setAttrGroupId(attr.getAttrGroupId());
            attrAttrgroupRelation.setAttrId(attrEntity.getAttrId());
            attrAttrgroupRelationDao.insert(attrAttrgroupRelation);
        }
    }

    /**
     * 获取可用于搜索的skuids****
     * @param attrIds
     * @return
     */
    @Override
    public List<Long> selectSearchAttrIds(List<Long> attrIds) {

        return this.baseMapper.selectSearchAttrIds(attrIds);
    }

}